Basically what I'm saying is, radiation is all around us. In fact we need radiation to survive (i.e. sunlight). Sunlight can also give you skin cancer. No study has yet shown a link between cellphone radiation and brain tumors and cellphones have been around for a long time. Statistically, this means you are at least a 1000 (if not a million) times more likely to die from skin cancer from being out in the sun than getting a brain tumor from a cellphone. I don't understand such aversion to cellphones, when there are so many other things out there that are much more likely to cause you harm.
